NCY Gear Set (15*37); GY6 150cc set Fits NCY Big Bore Kit

Fits NCY Big Bore Kit #1100-1265

a triggering circuit

Mechanic's Note: The 130/90-10 is a "beefy" tire

Overall dimensions: 14"L x 13"W x 2"H

Bolt Holes: 8

NCY Gear Set (15*37); GY6 150cc set Fits NCY Big Bore KitGet more speed and a more usable rev range out of your GY6 big bore kit with this 15*37 upgear set from NCY. This kit is a 20% upgear ratio from the stock 13*40 gear set. Specifications: Front Counter Shaft Teeth: 15 Front Counter Shaft Dimensions: Spline L: 24mm, OD: 31. 1mm, Overall L: 60mm Gear Press On Area L: 12. 08mm x OD: 19. 08mm, Ends L: 9<10. 5mm x OD: 15mm Rear Final Drive Gear Teeth: 37 Inner Spline: 19, OD: 71. 2mm, ID: 18mm, W: 20mm